Explosion Protection Data; Potentially Explosive Atmospheres - ABB 265DS Operating Instruction

Explosion protection data

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9 Explosion protection data
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9.1

Potentially explosive atmospheres

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Transmitter with "Intrinsically safe EEx ia" type of explosion
protection in accordance with Directive 94/9/EC (ATEX)
Transmitter with 4 ... 20 mA output signal and HART communication:
Designation: II 1/2 GD T 50 °C EEx ia IIC T6
II 1/2 GD T 95 °C EEx ia IIC T4
Power supply and signal circuit with "Intrinsically safe, EEx ib IIB/IIC"
or "Intrinsically safe, EEx ia IIB/IIC" type of explosion protection, for
connection to supply units with the following maximum values:
II 1/2 GD T 50 °C EEx ia or ib IIC T6
II 1/2 GD T 95 °C EEx ia or ib IIC T4
Temperature class T4:
U = 30 V
i
I = 200 mA
i
P = 0.8 W for T4 where Ta = -40 ... 85 °C
i
P = 1.0 W for T4 where Ta = -40 ... 70 °C
i
For temperature class T6:
P = 0.7 W for T6 where Ta = -40 ... 40 °C
i
Effective internal capacitance: C
Effective internal inductance:
Fieldbus transmitter (PROFIBUS PA / FOUNDATION Fieldbus):
Designation: FISCO field device
II 1/2G Ex ia IIC T6 or T4
II 1/2D Ex iaD 20 T50 °C or T95 °C
Power supply and signal circuit with "Intrinsically safe" type of
explosion protection, only for connection to supply units certified
according to the FISCO concept and with the following maximum
values:
U = 17.5 V
i
I = 500 mA
i
P = 8.75 W
i
or connection to supply units or barriers with linear characteristics.
Maximum values:
U = 24 V
i
I = 250 mA
i
P = 1.2 W
i
Effective internal inductance:
Effective internal capacitance: C
64
= 10 nF
i
≈ 0
L
i
L = 10 μ H,
i
= 5 nF
i
Permissible ambient temperature range depending on temperature
class:
Temperature class
T4
T5, T6
Category 3 transmitter for use in "Zone 2" as defined by
Directive 94/9/EC (ATEX)
Transmitter with 4 ... 20 mA output signal and HART communication:
Designation:
Operating conditions:
Supply and signal circuit
(terminal signal ±):
Ambient temperature range:
Temperature class T4:
Temperature class T5 and T6: Ta = -40 ... 40 °C
Transmitter with "Flameproof EEx d" type of explosion
protection in accordance with Directive 94/9/EC (ATEX)
Transmitter with 4 ... 20 mA output signal, HART communication,
and fieldbus transmitter (PROFIBUS PA / FOUNDATION Fieldbus)
Designation:
Operating conditions:
Ambient temperature range:
265Dx, 265VS
Lower limit of
ambient
temperature
-40 °C (-40 °F)
-40 °C (-40 °F)
II 3 GD T 50 °C EEx nL IIC T6
II 3 GD T 95 °C EEx nL IIC T4
U ≤ 45 V
I ≤ 22.5 mA
Ta = -40 ... 85 °C
II 1/2 G EEx d IIC T6
-40 ... 75 °C
IM/265D/V-EN-02
Upper limit of
ambient
temperature
85 °C (185 °F)
40 °C (104 °F)